scholarly journals EFFECTS OF SOLIDIFICATION TIME ON MECHANICAL PROPERTIES AND WEAR BEHAVIOUR OF SAND CAST ALUMINIUM ALLOY

2014 ◽  
Vol 03 (02) ◽  
pp. 71-75 ◽  
Author(s):  
S. Ilangovan .
Keyword(s):  
Mechanical Properties ◽  
Aluminium Alloy ◽  
Solidification Time ◽  
Wear Behaviour ◽  
Sand Cast ◽  
Cast Aluminium

scholarly journals Effects of Hard Surface Grinding and Activation on Electroless-Nickel Plating on Cast Aluminium Alloy Substrates

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Olawale Olarewaju Ajibola ◽  
Daniel T. Oloruntoba ◽  
Benjamin O. Adewuyi
Keyword(s):  
Aluminium Alloy ◽  
Electroless Nickel ◽  
Sodium Hypophosphite ◽  
Palladium Chloride ◽  
Alloy Sample ◽  
Sand Cast ◽  
Hard Surface ◽  
Cast Aluminium ◽  
Surface Polishing ◽  
Cylinder Piston

This work examined effects of hard surface polishing grits and activation on electroless-nickel (EN) plating on cast aluminium alloy substrates in sodium hypophosphite baths. As-received aluminium alloy sample sourced from automobile hydraulic brake master cylinder piston was melted in electric furnace and sand cast into rod. The cast samples were polished using different grits (60 μm–1200 μm) before plating. The effects on adhesion, appearance, and quantity of EN deposits on substrates were studied. Observation shows that the quantity of EN deposit is partly dependent on the alloy type and roughness of the surface of the substrates, whereas the adhesion and brightness are not solely controlled by the degree of surface polishing. The best yield in terms of adhesion and appearance was obtained from the activation in zincate and palladium chloride solutions. Higher plating rates (g/mm2/min) of 3.01E-05, 2.41E-05, and 2.90E-05 were obtained from chromate, zincate, and chloride than 8.49E-06, 8.86E-06, and 1.69E-05 as obtained from HCl etched, NaOH, and H2O activated surfaces, respectively.

scholarly journals Evaluation of Mechanical, Microstructures and Wear Behaviours of Aluminium Alloy Reinforced with Mussel Shell Powder for Automobile Applications

2021 ◽  
Vol 67 (1-2) ◽  
pp. 27-35
Author(s):  
Idawu Yakubu Suleiman ◽  
Auwal Kasim ◽  
Abdullahi Tanko Mohammed ◽  
Munir Zubairu Sirajo
Keyword(s):  
Mechanical Properties ◽  
Aluminium Alloy ◽  
Automobile Industry ◽  
Testing Machine ◽  
Wear Testing ◽  
Wear Behaviour ◽  
Mussel Shell ◽  
The Matrix ◽  
The Impact ◽  
Shell Powder

This paper aims to investigate the mechanical (tensile, hardness, impact, elongation), microstructure and wear behaviours of aluminium alloy reinforced with mussel shell powder (MSP) at different weight percentages (0 wt. % to 15 wt. %) at 3 wt. % interval. The mussel shell powder was characterized by X-ray fluorescence (XRF). The matrix and the composites’ morphology were studied using a scanning electron microscope attached with energy dispersive spectroscopy for the distribution of mussel shell powder particles within the matrix. The wear behaviour of the alloy and composites produced at various reinforcements were carried out using a Taber abrasion wear-testing machine. The XRF showed the compositions of MSP to contain calcium oxide (95.70 %), silica (0.83 %) and others. Mechanical properties showed that tensile values increase with increases in MSP, hardness value increases from 6 wt. % to 15 wt. % of MSP. The impact energy decreased from 42.6 J at 3 wt. % to 22.6 J at 15 wt. %; the percentage elongation also decreased from 37.4 % at 3 wt. % to 20.5 % at 15 wt. % MSP, respectively. The bending stress results increase with increases in the percentage of reinforcement. The morphologies revealed that uniform distribution of MSP within the matrix resulted to improvement in mechanical properties. The wear resistance of the composites increases with increase in the applied load and decreases with increases in the weight percentage of MSP and can be used in the production of brake pads and insulators in the automobile industry.

Investigation of Mechanical Properties and Dry Sliding Wear Behaviour of Squeeze Cast LM6 Aluminium Alloy Reinforced with Copper Coated Short Steel Fibers

2017 ◽  
Vol 71 (4) ◽  
pp. 813-822 ◽  
Author(s):  
Samson Jerold Samuel Chelladurai ◽  
Ramesh Arthanari ◽  
Nisaanthakumar Nithyanandam ◽  
Karthikeyan Rajendran ◽  
Kesavaprasad Kothandapani Radhakrishnan
Keyword(s):  
Mechanical Properties ◽  
Aluminium Alloy ◽  
Sliding Wear ◽  
Steel Fibers ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Squeeze Cast ◽  
Sliding Wear Behaviour

Strain Hardening Behaviour of Hipped and Non-Hipped Castings of Aluminium Alloy 354 Subjected to Two-Step Ageing Treatments

2014 ◽  
Vol 906 ◽  
pp. 249-253
Author(s):  
Arnav Gupta ◽  
Aditya Eswar ◽  
G. Dinesh Babu ◽  
M. Nageswara Rao
Keyword(s):  
Mechanical Properties ◽  
Aluminium Alloy ◽  
Strain Hardening ◽  
Ageing Time ◽  
Single Step ◽  
Second Step ◽  
Light Weight ◽  
Cast Aluminium ◽  
Treatment Analysis ◽  
Strain Hardening Rate

Cast aluminium alloys are being employed increasingly in the automotive sector due to their light weight and excellent castability. This paper focuses on the strain hardening behaviour of Hipped and non-Hipped components of cast aluminium alloy 354 subjected to two-step ageing, as opposed to the routinely carried out single-step ageing. First step ageing (at 100°C) was carried out for 2 h and 5 h; ageing time at second step (at 170°C) was 1, 2 and 5 h. Mechanical properties and strain hardening behaviour were evaluated for different variants of two-step ageing treatment. Analysis of the results shows that the Hipped components have higher hardening capacity and generally higher strain hardening rate compared to the non-Hipped ones. Some of the two-step ageing treatments give mechanical properties comparable to the conventional T61 treatment, but with significantly higher strain hardening rate.

Dry sliding wear behaviour of squeeze cast aluminium alloy-silicon carbide composites

1992 ◽  
Vol 151 (2) ◽  
pp. 235-245 ◽  
Author(s):  
O.P. Modi ◽  
B.K. Prasad ◽  
A.H. Yegneswaran ◽  
M.L. Vaidya
Keyword(s):  
Silicon Carbide ◽  
Aluminium Alloy ◽  
Sliding Wear ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Squeeze Cast ◽  
Cast Aluminium ◽  
Sliding Wear Behaviour
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